diff --git a/library/Class/UserGroupCategorie.php b/library/Class/UserGroupCategorie.php
index a4d4239c6d91d28dcf334b519b267e6e03825ded..09a140c439450f7f82e16d7329b3772557a0812a 100644
--- a/library/Class/UserGroupCategorie.php
+++ b/library/Class/UserGroupCategorie.php
@@ -51,21 +51,25 @@ class UserGroupCategorieLoader extends Storm_Model_Loader{
 
 class Class_UserGroupCategorie extends Storm_Model_Abstract {
   use Trait_TreeViewableCategorie, Trait_Translator, Trait_TreeNode;
-  protected $_table_name = 'user_group_categorie';
-  protected $_loader_class = 'UserGroupCategorieLoader';
-  protected $_has_many = [ 'user_groups' => [ 'model' => 'Class_UserGroup',
-                                              'role' => 'categorie',
-                                              'order' => 'libelle',
-                                              'dependent' => 'delete' ],
-                           'sous_categories' => ['model' => 'Class_UserGroupCategorie',
-                                                 'role' => 'parent_categorie',
-                                                 'order' => 'libelle',
-                                                 'dependents' => 'delete'],
+  protected
+    $_table_name = 'user_group_categorie',
+    $_loader_class = 'UserGroupCategorieLoader',
 
-    ];
+    $_has_many = [ 'user_groups' => [ 'model' => 'Class_UserGroup',
+                                     'role' => 'categorie',
+                                     'order' => 'libelle',
+                                     'dependent' => 'delete' ],
+                  'sous_categories' => ['model' => 'Class_UserGroupCategorie',
+                                        'role' => 'parent_categorie',
+                                        'order' => 'libelle',
+                                        'dependents' => 'delete'],
 
-  protected $_belongs_to = ['parent_categorie' => ['model' => 'Class_UserGroupCategorie',
-                                                   'referenced_in' => 'parent_id']];
+    ],
+
+    $_belongs_to = ['parent_categorie' => ['model' => 'Class_UserGroupCategorie',
+                                           'referenced_in' => 'parent_id']],
+
+    $_default_attribute_values = ['parent_id' => 0];
 
 
   /** [[file:~/public_html/afi-opac3/library/Trait/TreeNode.php::trait%20Trait_TreeNode%20{][voir Trait_TreeNode]] */
@@ -107,7 +111,6 @@ class Class_UserGroupCategorie extends Storm_Model_Abstract {
 
 
   protected function _isParentCategoryNotCircular() {
-    xdebug_break();
     $parent = Class_UserGroupCategorie::getLoader()->find($this->getParentId());
     while($parent) {
       if ($parent->getId() == $this->getId()) {